The 501 Turns 140

It's been 140 years since Levi Strauss patented the riveted pockets of his work jeans and gave the world the first pair of the now-iconic 501 jeans, and they've remained virtually unchanged ever since. In honor of the big 1-4-0, Levi's has switched up its 501 forumla, using lighter-weight shrink-to-fit denim that is dyed in colors other than indigo. (Think olives and tans.) The classic fit, though, is the same, which is just how the 501 faithful like it.